Comparison

SkillCat vs Electrical 3D Interactive Lab

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SkillCat

This app offers accredited online trade school courses and certifications for HVAC, plumbing, electrical, and more. Learn at your own pace, on your phone, and earn valuable credentials like EPA 608 and OSHA-10 without traditional school debt.

Highlights
  • EPA 608 & 609 Certification
  • Accredited Trade School Diplomas
  • OSHA-10 Certification
  • NATE Certification Prep
  • 200+ Trade Courses
  • Mobile-first learning
Read full description

SkillCat helps you build trade skills, earn certifications, and move your career forward - all from your phone. No classroom. No big bill. No waiting around for someone to give you permission. Just training that fits your schedule and helps you prove what you know. SkillCat has helped train 500,000+ tradespeople across HVAC, electrical, plumbing, appliance repair, maintenance, and more. What’s Inside: EPA 608 & EPA 609 Certification Study, practice, and take your EPA 608 exam online. Core. Type I, II, III. Universal. No test center. No extra hassle. Trade Career Launch Programs Build the foundation to start strong in the trades. Start with HVAC JobReady Certification, Electrical Basics Certification, or Plumbing Basics Certification. Learn the systems, tools, safety basics, wiring, circuits, troubleshooting, and job-ready skills that help you walk in with more confidence. OSHA-10 Certification Get safety training many employers expect before you step on the job. NATE Certification Prep Build the knowledge you need before taking the next step in your HVAC career. 200+ Trade Courses Learn the skills that matter on real job sites. Airflow. Wiring. Refrigerants. Motors. Diagrams. Troubleshooting. Safety. Tools. Systems. No fluff. No filler. Just training that helps you get better. Built For: Career switchers ready for a better path HVAC students and new techs Techs leveling up Electricians, plumbers, and maintenance workers Anyone tired of dead-end jobs and ready to build something real Why SkillCat: Train from your phone. Anywhere. Anytime. Just $10/month. Certifications employers recognize. Proof of skill, not just attendance. Training built for real workers. Download SkillCat and start training today. Terms of Service: https://www.skillcatapp.com/updated-terms-of-service

About

Electrical 3D Interactive Lab

Features
Read full description

ElectricalHouse 3D is an interactive 3D visualization and reference app for electricians, electrical inspectors, students, and homeowners. Explore a fully wired residential house in 3D — tap any component to instantly see its NEC code reference, wire gauge, protection type, and real-world function. VERSION 2.0 ADDS FOUR MAJOR NEW FEATURES NEC CODE REFERENCE Browse the complete NEC 2023 by chapter and article. Search across all articles by keyword, tap any article to see key requirements and code section summaries, and bookmark your most-used references for instant access. Covers Articles 90 through 760 — from definitions and grounding to solar PV and fire alarm wiring. INSPECTION CHECKLIST A professional-grade pass/fail inspection checklist covering six categories: Service Entrance, Panel and Breakers, Branch Circuits, GFCI/AFCI Protection, Grounding, and Outlets and Devices. Each item is tied to its NEC section. Mark items pass, fail, or N/A, add notes to failed items, track your live score, and generate a summary report showing all failed items with their code references. WIRE SIZING SUITE Four calculators in one tool — Ampacity (NEC Table 310.15, with adjustment factors for bundled conductors), Voltage Drop (single- and three-phase, with NEC 210.19 guidance), Conduit Fill (EMT/IMC/RMC with NEC Chapter 9 limits), and Box Fill (conductor, device, and clamp counting per NEC 314.16). Results update in real time as you adjust inputs. WHAT'S NEW WALKTHROUGH A guided first-launch screen introduces every new feature so users know exactly what has been added and where to find it. CORE 3D FEATURES Interactive 3D house with transparent walls, hidden roof, animated current flow Tap any component — outlets, switches, breakers, wires, fixtures — to see NEC reference and wire details Circuit filter bar to isolate Service Entrance, Panel, Kitchen, Bedroom, Bathroom, Living Room, and Grounding systems Panel Schedule showing all 10 circuits with amperage, wire gauge, and NEC reference Floor Plan view with room layout and circuit paths Riser Diagram showing service to panel to branch circuits LEARNING HUB — 7 INTERACTIVE TOOLS NEC Quiz: 20 questions across 5 categories with score tracking Fault Simulator: trip breakers, simulate overloads, AFCI nuisance trips, and ground faults Guided Tours: four narrated tours from service entrance to receptacle Wire Sizing Suite: ampacity, voltage drop, conduit fill, box fill (new in v2.0) Load Calculator: add appliances and watch circuits load up in real time Violation Finder: spot common NEC installation violations with code references Glossary: 42 NEC terms with plain-English definitions DESIGNED FOR Electricians preparing for journeyman or master exams Electrical inspectors doing residential inspections Electrical students learning residential wiring Homeowners and contractors understanding their electrical system Supports iPhone and iPad. Dark mode. Portrait and landscape.

Screenshots

SkillCat4 screens
Electrical 3D Interactive Lab4 screens

Verdict

The call

The clearest difference is price: SkillCat at Free against Electrical 3D Interactive Lab's $7.99. SkillCat also leads on chart position (#58 vs unranked) and iOS requirement (13.6 vs 16.0). Electrical 3D Interactive Lab's advantage is in-app purchases (none vs 8) and update cadence (fortnightly vs every 5 weeks). On ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

SkillCat is free to download; Electrical 3D Interactive Lab costs $7.99 up front. SkillCat sells 7 in-app purchases, starting at $10.00 per month. Electrical 3D Interactive Lab asks for nothing beyond the download.

UpkeepUpdate frequency

SkillCat ships an update every 5 weeks, Electrical 3D Interactive Lab fortnightly. The most recent releases landed on November 7, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 6 level
SkillCat versus Electrical 3D Interactive Lab: the parameters behind the verdict, then further details
ParameterSkillCatElectrical 3D Interactive Lab
PriceFree — better$7.99
Rating4.9 (10K ratings) — better—
Positive reviews82.9% of reviews—
Number of ratings10K — better—
Update frequencyEvery 5 weeksFortnightly — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscription—
Best chart rank#58 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.6 — better16.0
Further details — not scored
Size93 MB4 MB
Age rating4+4+
DeveloperSkillCat IncYuhsiu Lai

Bugs and requests

SkillCat

Reported bugs

3 issues
  • Login issues and long loading times
  • Inconsistent course access and progress tracking
  • Proctored exam technical problems

Requested features

3 requests
  • More certification options beyond EPA 608
  • Improved stability and performance
  • Enhanced user interface and navigation

Electrical 3D Interactive Lab

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

SkillCat

Subscriptions2
  • Monthly Subscription$10.001 Month
  • Annual Subscription$96.001 Year
One-time5
  • NATE RTW - One Retake Attempt$0.49
  • NATE RTW - One Retake Attempt$45.00
  • NATE RTW - First Attempt2 variants$60.00
Show 2 more
  • BSP Exam: First Attempt$119.99
  • BSP Exam: Additional Attempt$119.99
None

Electrical 3D Interactive Lab

No in-app purchases

Questions

Is SkillCat free?
SkillCat is free to download, with in-app purchases available.
Is Electrical 3D Interactive Lab free?
Electrical 3D Interactive Lab costs $7.99, with no in-app purchases.
Do SkillCat or Electrical 3D Interactive Lab have ads?
Neither SkillCat nor Electrical 3D Interactive Lab shows ads.
Which is updated more often, SkillCat or Electrical 3D Interactive Lab?
SkillCat ships an update every 5 weeks, and Electrical 3D Interactive Lab fortnightly. Most recently, SkillCat was updated on November 7, 2026 and Electrical 3D Interactive Lab on November 3, 2026.

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